Since the eagle has to focus on its aim and is master of it, they fly alone. If they fly in a flock, they will be distracted by the noise and the movement around. Unfortunately, they will miss the target.
During migration, eagles can fly for up to 124 miles or more. This is only for migratory eagles. During non-migration, they can fly 10-20 miles a day, sometimes less.
When an eagle is old, its eyesight dims and its feathers and wings become heavy. The eagle can look directly into the sun. As a test of the worthiness of its young, the eagle holds them up facing the sun. The birds that cannot stare into the sun and turn their eyes away are cast out of the nest.
Eagles. All birds of prey have excellent long-distance vision, but eagles stand out. They can see clearly about eight times as far as humans can, allowing them to spot and focus in on a rabbit or other animal at a distance of about two miles.
When it rains, most birds head for shelter; the eagle is the only bird which, in order to avoid the rain, will fly above the cloud.